Wind drag reduction airfoil



FIG. 1 is an isometric view of a wind drag reduction airfoil showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof; and, _

FIG. 5 is a side elevational view, the opposite side being a mirror image thereof. 

The ornamental design for a wind drag reduction airfoil, as shown and described. 